Firearm



June 21, 1927.* 1,632,892

K. J. GLANS ET AL FIREARM Filegl Feb, 26. 1926 ...Y-... ...Am

Patented June 21, 1927.

tenses riREARM.

Y Application led February 26,1926.. Serial No. 90,716.

This invention relates to improvements in firearms and moreparticularly'such tirearms of the breech-loading class, as are used incontest shooting. Y

A firearn'i of this kind, in order 'to be placed in the highest class,must-needs be of the very best quality of manufacture and provided witha firing and cooking mechanism very sensitive and easily movable. Theprecision of the hit depends largely upon these circumstances, as themuscular strain of the shot is liable to influence unfavorably, in casethe space of time increases.

ln' using firea 1ms of the type inquestion the pulling of the triggertakes place in two moments. rl`he last moment, the so-called quickpressure, consists in a very small movement of the trigger, thecorresponding muscular movement of the hand being very slight.Nevertheless it has not been possible to ensure sufficient precision ofthis mo' ment, the cause being that ythe inertia of .the firing-pin istoo great, which'will cause a certain space of time to pass Vbefore themoment of the hitting of the cartridge.V

According to this i vention the inertia of the firing-pin is reduced toa minimum and the firing-pin is in contact with the cartridge before thefiring takes place. The period of time elapsing-,between the action onthe trigger and the firing, will be the smallest possible and themuscular movements of the hand will not have time vto affect theprecision of the hit. The firing-pin by means of a resistance isprevented from hitting the cartric ge, and the resistance is eliminatedbefore the moment of firing.`

Loading is facilitated by swinging the linger-lever downwardly, whichoperation carries down the breech-block, at the same time preventing theraising of the hammer, the hammer raising Velementbeing forcc-4 guidedin one side of the back frame.

The invention is fully disclosed in the following specification, ofwhich the aecompanying drawing forms a part, in which theV separateparts of our invention are designated by reference figures in each ofthe views, and in which- Figure 1 a vertical longitudinal sectionthrough the mechanism of the firearm. Fig. 2 is a plan section online"ll-i1, 1', and Fig. 3 a cross section on line IH 1li, Fig. 1. lnFig. 1the finger-lever, in yits swungout position,l is shown bv dot-anddashlines.

`the breech-lock, said'hole being closed by .Figl et shows thebreech-block drawn to a reduced scale. show details. Y

The barrel 2 is screwed into the front Spartof the back frame orreceiver 1, to the rear partV of which the butt-stock 3 is secured inthe usual manner. .ln 'receiverl 1, ythe breech-block 4 is vertirrallymovable, guided by the side walls of avertical openingi'n the receiver.rlhe 4upward 'movement `ofbl'ocl 4 is limited by means ofanoutstandingmember 5 which abuts against vthetop side ofa.corresponding recess infthereceiver. The upper partof the breech-blockisjprovided with a. semicircular-recess 6 forV the cartridge, which isinserted througlra holer' inithe rearI wall vof, the receiver, when thebreechblock is lowered down to its loading position, in which .positionthe bottom of recess (ijis in alinement with t-he bottom of hole :7.NVheii, inserted, the cartridge9 `bears against-'the surface 10 of thebreech-block, the tiring# piny 11 being in position at said surface 'lhefiring-pin is characterized by itspar Figures 5f and "6 ticularly lightweight, this being made' pos- S0 sible by combiningV the firing-pinwith, a-y shaft 12, connectedfto the firing-pin means of two,fiangesf111 located in: rcorresponding recesses 121 and 122 in saidshaft- Between said recesses there is zanfinside flange 123corresponding to the neck 112 of t-he jfiring-pin. rl`he axial length ofsaid neck 112 is slightly greater than the Width of ange 123,giving'thefiring-pin'a small clearance in the recess 1221of the shaftbe` tween flange 11l and flangel 123,as shown in Figures 1 and 2, thispermittingthe firingpin to have a slight movement with relationI totheshaft. ln the position, of the mem-V bers shownA in these iguresrt-he:Aoperation of discharging the rearm is supposed-to have been performedand the firing-pin is on the point of penetrating' intothe car?` tridge,which penetrating operation trans-` fers the clearance Vfrom' the backto the 100 front side of flange 123. The recesses of the shaft are opento one side in order to facilitate the insertion of the firing-pin. YMoreover,rthe shaft is provided with al slotfor the =hammer 13 of thefirearm and forg the upper arm 15 of theset-trigger 14, saidvarm 15being located betweentwopins 124,12*` in the shaft serving forengagement-'by the arnr15. rihe shaft is movable ina hole fin f.

kll() means of a removable screwplug 16.' The Y breech-block e 1sprovided with Suitable re.

ting against the triggerarm 19, which isV made in one piece with trigger20. The trigger is pivoted on a pin 21 and provided with an adjustingset-screw 22 bearingv against the trigger spring 23. An adjustable stopis located in front of the trigger, said stop constituting an eccentric24, the object of which is to vary the stroke of t-he stroke of thetrigger by turning the eccen tric at different angles. The hammer spring25 acts upon arm 18. The set-trigger 14 turns on a pin 26 and isactuated in the direction of the barrel b y means of springs 27 and 28.

In finger-lever 29 the set-trigger by means of a set screw 30 is lockedin such a position that arm 15 abuts against the forward pin 124, andconsequently shaft 12 holds the firing pin 11 Vin position against thecartridge. A spring 28 connected to a piston 31, the stroke of which islimited by the action of a pin 32 against a plate 33, coacts with a rod34, guided inbreech-block 4 and connected to set-trigger 14. Said rod 34also penetrates the rear wall of receptacle 1, thus locking thebreech-block in its upper position. The finger-lever 29 by means of apin 35, extend-` ing through a vertically oblong hole, is connected tothe breech block, at the same time being connected to receptacle 1 bymeans of a pin 36 extending through a horizontally oblong hole. Lever 29is held in position by means of a spring-actuated bolt catch 37. Tofacilitate the loading operation, the

nger-lever is swung down to the position shown in dot-and-dash lines,the first' part of this swinging movement taking place without movingthe breechblock until the set-trigger 14 is set free. Then rod 34 isforced out of catch with the receptacle. During the continued swingingmotion of the lingers-lever the breech-block follows, until it hasreached its opening position, when the surfaces 41 abut against thefinger-lever. During this movement the spring-actuated extractor 38 isbrought into function. Said extractor 38 is located in a groove in theside-wall of receptacle 1 and executes a swinging movement between thepoint of a screw 39 and a projection 40 resting against the side of thebreech-block. A vert-ical groove 41 is arranged in the breechblock for aprojection 42 of the extractor, said groove at the top having abentportion, as shown in Fig. 4 and besides being wedgeshaped, as shownin Fig. 3. By this arrangement, the extractor during the openingoperation will move backwardly and will at the same time execute aswinging movement.,` all with the object of extracting the cartridgeshell. Suitable recesses 43 in the breech-block facilitate vthesemovements.

The raising of the hammer is `caused by the eccentric 44, formed on apin 45 turning in the side wall of the breech-bloclr and coacting bymeans of a cam 46 with a groove in the turningV head 47, which headturns inthe side wall of receptacle 1 and is provided vvith aturning-lever 48. A spiral spring 49 is Asecured at one end to thereceptacle and at the other end to lever 48 in order to force the leverback to its normal position after the raising of the hammer. During theopening movement of the breechblock, cam 46 slides into a groove 50 inthe receptacle wall, said groove being located eX- actly below thegroove of turning head 47. During the closing movement the set-trigger14 is carried into such position that its lower end overlies the setscrew 30, and at the same time shaft 12 by means of springs 27, 28 ispressed against the screw plug 16. By this means the firing-pin issecured from action, said springs being powerful enough to take up theblow of the hammer, and the right hand flange 111 being in contact withthe flange 12? of shaft 12. The movement of set-trigger 14 so as tocarry its extreme lower end into abutting relation with the end of screw30, as shown in Fig. 1, is accomplished by applying a slight pressure onthe set-trigger the firing-pin 11 abutting against the cartridge with acertain degree of pressure, caused by the spring action of theset-trigger arm 14. i

lVithin the range of the invention, the details specified above may bevaried as to material, shape and arrangement.

Having fully described our invention, what we claim as new and desire tosecure by Letters Patent, is

1. In a breech-loading firearm, the combination of a Firing-pin, afiring mechanism co-acting with said tiring-pin, and a setting deviceadapt-ed to act upon said firing-pin so that the firing-pin is heldunder pressure against a cartridge carried by the firearm when thefiring mechanism is in its tiring position.

2. In a breeclrloading firearm, the combination of a firing-pin, afiring mechanism cosacting with said firing-pin, and a setting deviceadapted` to act upon said firing-pin so that the firing-pin is heldunder pressure against a cartridge carried by the firearm when thefiring mechanism is in its firing position, said firing mechanismincluding a slidable shaft for operating said iring-pin, said pin andshaft having co-operating means for connecting them together andpermitting relative movement in the firing direction sufiicient to causethe firing-pin to penetrate the cartridge. y

' In testimony whereof we have signed our names to this specication.

naar JOHAN eLANs. JoNs EMANUEL GLANs.

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